Apparatus for controlling steam-supply to heating systems.



APPARATUS FOR common; AFPLICAT! immmnr WIT/V58:

H. J. MARKS;

NG-STEAM SUPPLY- TO HEATING SYSTEMS. 0N FILED AUG. 20. 1915.

. PatentedApn4, 1916.

HARRY 3. means, or mamazeoueoxfusw eas;

( APPARATUS FOR CONTROLLING STEAM-SUPPLY TO HEATING SYSTEMS.

To all whom it may. concern:

Be it known-that HARR J. MAIQQS, a citizen of the United States, and a resident of 'Mamar-oneck, in the county of Westchester and "State of New York, have invented certain new and useful Improve ments in Apparatus for Controlling Steam- Supply to Heating, Systems, of which the following is a specification.

My invention relates to heatingsystems inwhich steam is the fluid vehicle of trans mission and distribution; and my object is to adequately control the initial steam sup ply and pressure in such manner as to prevent waste thereof and utilize fully the calorific value of the steam used, as hereinafter more fully set forth, a distinctive fealure of the invention consisting in the provision of means whereby the steam is abstracted intermittently from the source of supply for use in the system in such manner that its expansive properties are effectually conserved and utilized, in contra-distinction to theold method of supplving the steam,

to the heating system at full, pressure in a direct, uniform and continuous flow from the sourceof supply, In other words I interpose between the heatingsystem and the initial steam supply. and pressure intermittent means for controlling the admission of stcam to the heating system 'whereby the pressure is, forthwith reduced to the operative requirements of the system the latent 4 a boiler or other source of steam supply a heat by coefficient expansion is more effectuallv utilized. and the waste-incident to a continuous rush of steam at i'nitial pressure to and through the svstem is obviated.

ln'the aceompanvmg drawings I.1llust rate diagran'imatlcally and symbolically means for effecting the practical upplica-,

tion and operation of my invention; Figure 1, being a sectional elevation .showmguthe relation of essential-elements; and Fig-f being an elevation of thrust" and speed mechanism adapted to 'eifect t'head ustmenti of stroke and'speed of the canproiuagynve In" the aforesaid drawing" B, represe initial pressure, and H, a steam conduit communicating" with the heating system Specification of ietters Patent.

Patented A r; a; 1916,

Application filed August 20, 1915. Serial m 46,517.

be furnishedwith steam as a fiuid vehi'cle.

for the transmission of the heat required.

Interposed in the steam conduit 6, b, between the steam source 13, and the conduit H, to the heating system, is a controlling valve which may be of any desired or Well known construction, as may be found most expedient in adapting the invention and apparatus to the various requirementsof use,the essential feature in this respect being a valve C controlling a port 0, in the steam conduit 6, b,-the latter; 5', being g the portion of the steam conduit beyond the port 0; andsaid port 0, in this re'presentw tion of parts, being constituted by the seat for the valve (1..

Any means desired may be employed to operate the valve C,iintermittently,there being various well knownmechanical expedients that may obvi ously be substituted with like efiect forthis purpose in lieu, of

the particular device'shown in thedrawings,--in which a spring s, interposed between the valve casing and a shoulder soon the valve stem 0, tends constantly to hold the valve Cyto its seat to closeithe port; :c,

from which the valveC, is raised by an e centric E, acting against the outer endi'of the valve stem .0, and against the resistance of the springs. i

The eccentric E, is mounted adjustably upon the counter shaft 4, so that its thrust may be varied to prescribe the extent to which the port as to be opened-at each reciprocation of the valve C, and its stem 1;, AnyAve-ll known means mav be resorted to in thus providing for the adjustment of thereciprocatory stroke of the valve C, as related to its'seat c. eccentric is sl'iownasformed with acentral radial slot 0, straddlindthe countershaft' a,

said. shaft a, in any prescribed position In the drawings'the' I which ,is screw-threaded for engagement. with the clamping nuts a. a, bywhich: the eccentric E,.may, be rigidly secured'tothe' known mechanical cxpedients without departing from the spirit and intent of my invention in this respect. In like manner mechanical cxpedients for varying and prescribing the speed of reciprocation of the controlling valve (1, other than herein shown may be resorted to withlilte effect in so far as this feature of my invention is concerned, the driving cone D, herein represented being chosen as a simple expedient for the purpose, and by way of illustrating the principle involved. Thus the conical driving member D, is shown as rigidlyattached to a power shaft P, mounted on a frame Q, which is longitudinally adjustable, and said cone D, contacts carries the eccentric E, which actuates the Yalve stenro', and valve C, as herelnbefore "stated. To effect this longitudinal adjust- 'ment of the driving cone D, and power shaft P, the frame Q, is mounted between parallel guide ways 9, g, and adjusting screws 9', o, are provided at each end of the frame Q, as shown in Fig 2, whereby the frame Q, may be locked in a prescribed position. The powenshaft P is driven by means of a pulley p, or .any other power transmitting device.

It will be noted that the longitudinal axes of the power shaft I, and counter shaft a, are inclined with relation to each other in such manner that the tread pulley is positioned at right angles, or perpendicular, to the side of the driving cone D, with which it contacts. In other words, the upper side of the driving cone D, is parallel to the longitudinal axis of the counter shaft a, so that the longitudinal adjustmcnt'of the driving .40 cone D, and the power shaft 1, '(lOLb 1lUl affect the contact engagement between the driving cone D, and driven or tread pulley a".

But obviously such longitudinal adustment of the driving cone 1), upon the power shaft P, will increase or diminish the speed of ro tation of the countershaft a, according to direction of ad justmcnt, and hence the speed of reciprocation of the valve rod 0, and valve C.

It will thus be seen that I have disclosed herein practical means not only for varying and prescribing the. effective stroke of the valve C, so that it may be made to open the port 0, more or less at each recipi-ocation, but

also practical means for varying and prescribing the speed of reciprocation of said controlling valve. Hence I am enabled to regulate the action of the controlling valve C, with accuracy in accordance with the conditions and requirements of use, or in other words, accordipg to the initial pressure of the steam on one side and-the operative pressure required in the heating system to be supplied with steam, on the other side peripherally with the tread pulley of, on the countershaft a, which 01 rue port 0, it being understood that the expansive throughthc port c, are utilized to the fullest extent in adapting the steam supply to the size and capacity of the heating system in such manner that there will be no excess or surplus to result in waste.

In order to render the supply of steam to the heating system uniform in pressure and flow, and to counteract the fluctuating tendency of the intermittent action of the corn trolling valve (1, I prefer to inter-pose an equalizing chamber I, between the heating system and the controlling valve C, as shown symbolically in Fig. 1. I- thus attain a steady, uniform llow of steam under appropriatepressure to the heating system, much better adapted to the requirements thereof, and much more susceptible of regulation and control, than a rush of steam through the heating system at initial pressure, as in the old method of supply, which it is the object of my invention to supcrscdc, involving as the latter does a large percentage of waste by direct loss of pressure and heat, besides being otherwise unsatisfactory and unscientific.

By my method I hold back the initial vollime and pressure of steam in the boiler or other source of supply, drawing upon it only as needed for use, and accurately controlling the amount of steam released or drawn oil in accordance with the actual capacity and requirements of the heating system to be supplied. In this connection, of course, the means for regulating the thrust of the valve, or converse] y speaking, the available area of the port c, when open, as wcll as for regulatin the speed of operation of the valve, arc inmortant factors in attaining the desired result. Thus there. can be no waste from the blowing or forcing of an unncccssary amount of slcam through the hcating system where such excess is not amenable to control, but is, on the contrary, apt to be a source of trouble and annoyance, as well as of waste.

What I claim as my invention and desire to secure by Letters Patent is,

1. Apparatus for supplying steam to a heating system comprising an equalizing chamber connected therewith, a valve interposed in the steam conduit between said equalizing chamber and a source of steam at initial pressure, means for continuously operating said valve intermittently, and means for regulating the extent of opening of said valve, whereby the expansive properties of the steam are utilized and the pressure adapted to the operative requirements of the system.

2. Apparatusforsupplyingstcam to a heating system comprising an equalizing chamber connected therewith, a valve interposed properties of the steam passing too ai'ze lve in the steam conduit between said equalizing pensive properties of the steam are utilized chamber and a source of steam at initial and the pressure adapted to the operative re pressure, means for continuously operating quirements of the system. said valve intermittently, means for regulat- HARRY J. MARKS. .5 ing the extent of opening of saidNah-e, and Witnesses:

anean's for varying and regulating the speed GEO. WM. MIATI, ofoperation of sa d yalve, Wherebv the. QX- ISAA QM, *JACOBSON. 

